That brings back old memories. All of our old Harris data books have
been trashed. Harris had a big problem with all of their PROMs: they
grew back after programming. We quit using them for that reason.

The first Data Books from Harris gave instructions on the programming
protocol. The book indicated that these were the easiest and most
forgiving devices (as far as programming parameters) in the industry.

These PROMs were the opposite of convention: they were shipped all ones
vs all zeros. The later data books indicated that the programming
parameters were more critical. At the end even Harris was unable to
supply us with programmed PROMs what did not grow back.

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